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CH177821A - Process for the preparation of an o-oxyazo dye. - Google Patents

Process for the preparation of an o-oxyazo dye.

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Publication number
CH177821A
CH177821A CH177821DA CH177821A CH 177821 A CH177821 A CH 177821A CH 177821D A CH177821D A CH 177821DA CH 177821 A CH177821 A CH 177821A
Authority
CH
Switzerland
Prior art keywords
dye
oxyazo
preparation
amino
oxybenzene
Prior art date
Application number
Other languages
German (de)
Inventor
Aktiengesellsc Farbenindustrie
Original Assignee
Ig Farbenindustrie Ag
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ig Farbenindustrie Ag filed Critical Ig Farbenindustrie Ag
Publication of CH177821A publication Critical patent/CH177821A/en

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Description

  

  Verfahren zur Herstellung eines     o-Oxyazofarbstofes.       Nach dem im Hauptpatent beschriebenen  Verfahren erhält man einen Wolle in Gegen  wart einer Chrombeize in blaugrünen Tönen  anfärbenden     o-Oxyazofarbstoff,    wenn man       2-Amino-l-oxybenzol        diazotiert    und die     Diazo-          verbindung    mit     1-Phenylamino-8-oxynaph-          thalin-4-sulfosäure    kuppelt.  



  Wie nun weiter gefunden wurde, erhält  man einen ähnlichen Farbstoff, wenn man       3.4.6-Trichlor-2-amino-l-oxybenzol        diazo-          tiert    und die     Diazoverbindung    mit     1-(4'-Tolyl)-          amino-8-oxynaphthalin-4-sulfosäure    kuppelt.

    <I>Beispiele;</I>  212,5 Teile     3.4.6-Trichlor-2-amino-l-          oxybenzol    werden mit 500 Teilen Salzsäure  12'     B8    und 69 Teilen     Natriumnitrit        diazo-          tiert.    Die     Diazoverbindung    läuft dann zu  einer Lösung von 345 Teilen 1-(4'-Tolyl)-         amino-8-oxynaphthalin-4-sulfosäure    und 240  Teilen Soda. Nach beendeter Kupplung wird  in üblicher Weise aufgearbeitet. Man erhält  einen Farbstoff, der sich in Wasser mit blauer  Farbe löst. Mit     Metachrombeize    wird auf  Wolle ein blaues Grün von guten     Echtheiten     erhalten.



  Process for the preparation of an o-oxyazo dye. According to the process described in the main patent, a wool in the presence of a chrome stain in blue-green tones dyed o-oxyazo dye is obtained if 2-amino-1-oxybenzene is diazotized and the diazo compound with 1-phenylamino-8-oxynaphthalene-4 -sulfonic acid couples.



  As has now also been found, a similar dye is obtained if 3.4.6-trichloro-2-amino-1-oxybenzene is diazo- tated and the diazo compound with 1- (4'-tolyl) -amino-8-oxynaphthalene-4 -sulfonic acid couples.

    <I> Examples; </I> 212.5 parts of 3,4.6-trichloro-2-amino-l-oxybenzene are diazotized with 500 parts of hydrochloric acid 12 'B8 and 69 parts of sodium nitrite. The diazo compound then runs into a solution of 345 parts of 1- (4'-tolyl) amino-8-oxynaphthalene-4-sulfonic acid and 240 parts of soda. After the coupling has ended, it is worked up in the customary manner. A dye is obtained which dissolves in water with a blue color. Metachrome stain gives a blue green with good fastness properties on wool.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung eines o-Oxy- azofarbstoffes, dadurch gekennzeichnet, dass man 3.4.6-Trichlor-2-amino-l-oxybenzol dia- zotiert und die Diazoverbindung mit 1-(4'- Tolyl) - ami no - 8 - oxynaphtbalin - 4 - sulfosäure kuppelt. Der Farbstoff färbt Wolle in Gegen wart einer Chrombeize mit einem blauen G rün. PATENT CLAIM: Process for the production of an o-oxy azo dye, characterized in that 3,4,6-trichloro-2-amino-1-oxybenzene is diazotized and the diazo compound with 1- (4'-tolyl) - amino - 8 - oxynaphtbalin - 4 - sulfonic acid couples. The dye dyes wool in the presence of a chrome stain with a blue green.
CH177821D 1933-05-10 1934-03-02 Process for the preparation of an o-oxyazo dye. CH177821A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE177821X 1933-05-10
CH174650T 1935-01-31

Publications (1)

Publication Number Publication Date
CH177821A true CH177821A (en) 1935-06-15

Family

ID=25719533

Family Applications (1)

Application Number Title Priority Date Filing Date
CH177821D CH177821A (en) 1933-05-10 1934-03-02 Process for the preparation of an o-oxyazo dye.

Country Status (1)

Country Link
CH (1) CH177821A (en)

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